Pretreatment with the OR5M11-specific antibody reduced A. pleuropneumoniae 5b WT infection-mediated PAM apoptosis (Fig. 6G), as characterized by the significantly reduced activation of caspase-3 (p < 0.05, Fig. 6H) and p53 (p < 0.01, Fig. 6I). The gene discussed is OR5M11; the disease is infection.